Pleasurable Change (STORY)

The sun had almost passed horizon, and Christina was in a hurry. She had forgotten to stop by the shopping mall after work, and her fridge was empty. The mall closed at eight, giving Christina less than 20 minutes to run her errands.
Eventually she arrived and quickly went to the grocery store, grabbed a cart and started picking stuff from the shelves. After a few minutes she had gotten everything she needed except milk.
She went to the fridge, but couldn't see any sign of it, or any dairy products for that matter.
A bit disappointed, the girl scouted the mall for any employees, and quickly saw one next to the cereal section.  
- Excuse me, where can I find the milk? Christina asked.
The employee, a redheaded girl with tons of freckles turned around and smiled.
- I’m sorry, but I don’t think there’s any more left...but I can check the storage if you don’t mind waiting? The employee answered.
- Sure, thanks!
The girl left in a hurry, and came back after a few minutes with a carton.
- So, it looks like we’re out of our original stock, but I found this in one of the fridges in the back.
Christina took a look inside the box, and saw a few glass bottles of milk without any label.
- This is milk? Christina asked.
- Yes, I’m pretty sure.
Christina picked up a bottle and inspected it.
- But where’s the label?
- Oh, I think they forgot that part when they produced them, that’s probably why they’re not on the shelves. But they came yesterday, so they’re fresh!
- Ok sure, I’ll take a bottle, thanks, Christina said and placed the bottle in her cart.
- By the way, call me if you have any trouble, the girl said and gave Christina a small card with a phone number written on it.

- Um...yeah ok? Se answered with confusion, grabbed the card and started walking toward the exit. The employee watched her as she walked away.
- See you soon, she said with a low voice and grinned.

When she got home she placed the groceries in the fridge, and made a cup of coffee with extra milk and sugar she had gotten from the store. Satisfied with her day she threw herself in bed to relax in front of the tv. The first sip of coffee is always the best, but today it had a strange, more creamy taste. It didn’t bother her much though, and she quickly finished her coffee.
After a while she started to feel hot, the same way she feels when she had a fever. Except it didn’t feel bad, but rather the opposite. She felt good. Extremely good. Christina turned off the tv and opened a window to let in the fresh and cold evening breeze, and jumped back in bed. The pleasurable sensations grew stronger and stronger, and her body was still hot.
- What is going on? Why do I feel so strange?
The confused girl started to undress herself, but when she removed her bra she noticed her nipples were hard and erect. They also looked a bit bigger than usual. She squeezed one of her nipples and a wave of arousal shot through her body.
- Ohhh, she moaned softly and leaned back on her bed.
Her breaths started to quicken, making her feel light headed. With each breath she took she could feel a wave of pleasure wash over her body. All of a sudden her breasts started to feel tingly, and she could feel a pressure within them. She looked down at them and saw them expanding right in front of her eyes.
- Oh my god, my boobs are growing! What the hell is happening to me? She screamed.
They grew bigger and fuller, stretching her skin. She cupped them to inspect, but instantly removed her hands when a shock wave of pleasure and arousal emerged from her tits.
- Ahhh, they’re so sensitive!, she moaned.
Her boobs didn’t seem to stop growing, and the pressure in them was intense. Small drops of white fluid started to drip from her nipples.
- I’m lactating? They’re filling up with...milk?
Christina was getting worried, but it was hard to concentrate on anything with all the waves of arousal hitting her constantly. She then remembered the girl in the grocery store, and the card she had gotten from her.
- Shit I have to call her, maybe there was something wrong with the milk.
She got up from her bed and reached for her phone, only to notice her hands had started to change as well. Her nails had gotten darker, and her fingers had fused together in some places. They felt stiff and it was hard to move her fingers properly. As she watched her hands, they changed in front of her. The dark area on her nails expanded downwards her hands, and she realized what her hands were becoming.
- Hooves? Why is my hands turning into hooves? And milk? Am I turning into a cow? She screamed and tried to pick up her phone without success.
- Fuuck! I can’t hold it!
She used both of her hooves to move her phone onto the bed. How she would unlock her phone and make the call was still a problem to be solved. She then felt something itch under her still growing, extremely large milk leaking breasts. Two small nipples had emerged, and started to swell and grow. Before she could react she had two smaller boobs under her original ones. She felt the same pressure inside of them, and it only grew stronger and stronger. As the pressure grew, so did her arousal. She had never been this aroused before, and she thought about fingering herself, but then remembered she didn't have fingers anymore. Two bumps started to grow from her forehead. She reached up with her hooves and felt something sharp sticking out of her head. It grew longer, forming into horns. Her ears started to grow in size as well, and a soft layer of hair started to form on different parts of her body. Her bed sheets were soaked in milk from her still growing tits. They felt so full, ready to burst.
- The pressure is too much, I need to...I need to milk myself, she cried as she tried to cup her breasts with her hooves. As she did, milk shot as a water hose from her boobs, sending a shock wave of pleasure through her body. She threw herself back in the bed and started shaking. She squeezed and pressed her boobs as milk kept flowing from them. She was filled with pleasure and arousal so strong that she was on the brink of an orgasm without touching her wet, swollen pussy. She moaned and screamed, clutched her wet bed sheets as she spasmed and rolled in bed. Her swollen breasts started to turn slightly pink, and the soft layer of hair covering her body grew thicker.
- Oh, my god...I need to come! She screamed as she grabbed a pillow and threw it between her legs. As the pillow touched her pussy, she instantly had an orgasm, the strongest one she had ever felt before, and it didn’t stop.
- Ahhh aaahhh, ohhh myyyyy goooood! Fuuuck! She screamed.
She came over, and over, and over again, like how a good cowgirl should.